| //@ run-pass |
| #![allow(non_camel_case_types)] |
| |
| type compare<T> = extern "Rust" fn(T, T) -> bool; |
| |
| fn test_generic<T:Clone>(expected: T, eq: compare<T>) { |
| let actual: T = match true { true => { expected.clone() }, _ => panic!("wat") }; |
| assert!((eq(expected, actual))); |
| } |
| |
| fn test_bool() { |
| fn compare_bool(b1: bool, b2: bool) -> bool { return b1 == b2; } |
| test_generic::<bool>(true, compare_bool); |
| } |
| |
| #[derive(Clone)] |
| struct Pair { |
| a: isize, |
| b: isize, |
| } |
| |
| fn test_rec() { |
| fn compare_rec(t1: Pair, t2: Pair) -> bool { |
| t1.a == t2.a && t1.b == t2.b |
| } |
| test_generic::<Pair>(Pair {a: 1, b: 2}, compare_rec); |
| } |
| |
| pub fn main() { test_bool(); test_rec(); } |